he drew up the papers and we had him legally evicted. you can do that? you can evict a child? he was 21 at the time. reporter: but diane loved her only child and couldn t cut the cord. she let him come home. the summer of 2010, however, was racing towards a showdown. tensions in the family were high. the kyne house was cramped with four extra people. bill s son and his family camping out on couches because of financial troubles. kevin wasn t making things any easier, obnoxious about sharing the household computer. he was the computer hog. that s all he ever wanted to do, was sit on the computer. it wasn t even his computer, but he would change the passwords and kick everybody off. reporter: kevin s mother was furious. she d stop talking directly to him, trying to avoid the persistent arguments. they re just talking via e-mails? completely. 30 feet across the house and they re communicating by e-mail? not even 30 feet at times. reporter: the last straw was kevin cu